protected function createSocketChannel($socket, int $chunkSize, int $length = null) : Channel
{
$size = (int) \max(1, \ceil(65535 / $chunkSize));
return Channel::fromGenerator($size, function (Channel $channel) use($socket, $length, $chunkSize) {
$reader = new SocketReader($socket);
$remaining = $length ?? \PHP_INT_MAX;
try {
while ($remaining && null !== ($chunk = (yield $reader->readBuffer(\min($remaining, $chunkSize))))) {
$remaining -= \strlen($chunk);
(yield $channel->send($chunk));
}
} finally {
$reader->dispose();
}
});
}
/**
* {@inheritdoc}
*/
public function read(int $length) : \Generator
{
$chunk = (yield $this->reader->readBuffer($length, true));
$this->offset += \strlen($chunk);
return $chunk;
}